g++-8 (Ubuntu 8.4.0-1ubuntu1~18.04) 8.4.0Copyright (C) 2018 Free Software Foundation, Inc.This is free software; see the source for copying conditions. There is NOwarranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.It's that OK? I notice its Ubuntu version, while my OS is Linux Mint 19.3 Cinnamon.

./home/pelu/Fundamentos, de, , g++-8 -Wall -fexceptions -g -Iinclude -I/home/pelu/Escritorio/dungeon -c /home/pelu/Escritorio/dungeon/main.cpp -o obj/Debug/main.o both ways, with and without the starting "." char. It showed the same message the both ways

Sorry again, I forgot to translate that part of the console output this time. Now it's done.

I really don't know how this folder "Fundamentos de Programación" has got to C::B log, it is ubicated in my user folder, "/home/pelu", but i don't know why this is an input to C::B, since my project ".cbp" file is in "/home/pelu/Escritorio/dungeon/dungeon.cbp". (Note: "Escritorio" is "Desktop" in my language, i dont know if its appropiate to translate folder names so i leave it as it is)

It looks like these two lines are created by actually one call to the compiler, most probably CodeBlocks "pretty-prints" the first line and the second line is the actual execvp call that CodeBlocks tries to execute. The first parameter of that call is the path to the executable and this one seems to be corrupted.

This looks like this is the path that the execvp call gets passed in, with spaces and non-ASCII letters and this seems to get wrongly inserted into the execvp call. I don't know how CodeBlocks constructs the compiler call but i would guess this path must be specified somewhere in the toolchain settings of the compiler configuration and im pretty sure this is not the path where gcc is installed. At first i would look there and correct that path (should be /usr/bin or something like that). If it's not part of the toolchain settings then hopefully someone else with more knowledge about CodeBlocks internals know which other locations contribute to the creation of the compiler call command.